How to fix a gurgling boiler
- Bleed the radiators. In most cases, gurgling noises that may appear to originate in the boiler are actually caused by air elsewhere in the system.
- Check the condensate pipe.
- Check the circulation pump.
- Check the pump.
- Check the pressure.
- Check the air intake/flue.
Contents
Why is my boiler making a gurgling sound?
The boiler is gurgling The most common reason for a gurgling sound is air trapped in the system or a blockage at the base of your boiler. This trapped air may also be accompanied by cold patches on a radiator. You should also check your boiler pressure in case you have low water pressure causing the gurgling noise.
How do I stop my boiler from making noise?
Ways To Reduce Boiler Noise
- Add central heating inhibitor, a scale reducer (in hard water areas) and a boiler filter.
- Have a heating engineer do a hot-flush, or power flush on your heating system.
- Check the boiler for leaks, operating pressure and water flow rate.
- Remove airlocks in the boiler’s heating pump.
Should my boiler be gurgling?
Gurgling in a boiler is fairly common and is usually the water moving through the system, so it’s typically not a huge cause for concern. However, if the gurgling becomes constant or is loud enough to catch your attention, this could be a sign that something may need adjusting.
Why does my boiler sound like a fog horn?
A noise that sounds like a drone, an aeroplane or even a foghorn (as demonstrated in this example) is characteristic of a pump that’s on its way out. There’s a variety of causes for this, such as a simple mechanical pump failure or air and debris caught in the boiler’s impeller.
Will my boiler explode?
While historically, boilers would over-pressurise and explode with alarming regularity, modern boilers are manufactured to be able to withstand excessive pressure, and can typically handle an operating pressure of 20 PSI. When pressures increase beyond this level, the boiler can fail, which can lead to an explosion.
Why does my boiler sound like a kettle boiling?
The similar sound to a kettle boiling coming from your boiler could be down to something called kettling. When the water flow is restricted as it is trapped in the heat exchanger it becomes too hot and starts to steam, boil and therefore expand. This is what causes the noise.
